Beater



June 23, 1936.v P. c. WIEGANDT,

BEATER 5 Sheets-'Sheet l Filed Dec. 22, 1935 .f if

June 23, 1936. p. Q WIEGANDT 2,045,171

BEATER Fiied Dec. 22, 1955 nsheets-sheet 2 d f Y j?, Ja, l I nventm Pazzi Mjah/a7 4/ ya mamy June 23, 1.936. P. C. wlEGANDT. 2,045,171

BEATER Filed Deo. 2'2, 1955 s sheets-sheet s4 I nventm Patented June 23, 1936 UNITED STATES PATENT OFFICE y BEATER Paul C. Wiegandt, Brooklyn, N. Y.

Application December 22, 1933, SerialNo. 703,657

3 Claims. (Cl. 259-128) This invention relates to beaters ofthe type designed for beating eggs, cream, dough, and the like, and among the objects of the invention are, to provide, in a manner hereinafter more fully set forth, a beater of the rotary type characterized by simplicity and economy of structure; a head for the beater of improved and novel design having the requisite amount of flexibility and strength; and in general to provide a beater of the character suggested having therein provision for properly aerating the food product being whipped, as well as other features of construction which will permit'of a thorough cleansing of the beater after each use thus insuring full sanitation.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure 1 is a sectional view taken through the improved beater.

Figure 2 is a bottom plan View thereof.

Figure 3 is a plan view of the blank from which one form of head for the beater is formed.

Figurer-l is a plan View of an annular plate hereinafter more fully referred to.

Figures 5 and 6 are transverse sectional views taken substantially on the lines 5-5 and 6-6 respectively of Figure 1.

Figure 7 is a fragmentary elevational view of the beater rod.

Figure 9 is a bottom plan View of a modified form of beater head.

Figure 10 is a horizontal sectional view through the beater head of Figure 9.

Y Figure 11 is a side elevational view of one of the blades forming part of the beater head construction of Figure 9.

Figure 12'is a detail sectional View taken substantially on the line |2|2 of Figure 9.

Figure 13 is a detail sectional view taken substantially on the line |3|3 of Figure 12.

Figure'j 14 is a perspective View of a hub element. 1 y

Figure 15 is a perspective view of a complemental hub element.

' Figure 16 is a fragmentary plan view illustrating a modiedform of hub and blade assembly.

Figure 17 is a detail sectional view taken substantially on the line k|'|-|1 of Figure 16 and Figure 18 is a side elevational view of a blade illustrating the various forms which the projections on the blades may assume in the contemplation of the invention.

Referring to the drawings by reference numerals it will be seen, that in general, the beater comprises a spirally twisted rod 20, a beater head 2| connected with the lower end of the rod 20 to rotate therewith, and an operating handle 22 for 5 the rod 20 and suitably associated therewith so that by reciprocating the handle 22, when the beater is in proper bearing engagement against the bottom of the receptacle containing thematerial to be whipped, the rod 20 and 2| will be 10 caused to rotate ilrst in one direction and then in another, thereby thoroughly agitating the material to be whipped.

In the present and preferred form of the invention the rod 20 is preferably formed from a 15 suitable section of rod that is substantially square in cross section the faces of which are concaved, and which rod is spirally twisted as shown. At the lower end thereof the rod is provided with a reduced section 23 and a shoulder 2o 24, At its upper end the rod 20 is somewhat tapered and round in form as at 25.

The handle 22 comprises a tubular casing 26 to the upper end of which is applied a socket 2l of wood or any other suitable material. At its 25 lower end the socket or handle grip 21is reduced and provided with a suitable ferrule 28. The tubular casing 2E at its lower end is provided With an integral cap 29 provided with an opening that is substantially the same shape as the cross sec- 30 tional shape of the rod 20, the cross sectional shape of the rod 20 being clearly shown in Figure 5. At a suitableA point in its length spaced downwardly from the upper end 25 the rod 20 is provided with a circumferential groove 30 with 35 which is suitably engaged a stop disk 3| and with which the cap 29 normally abuts. The rod 20 is normally-held in the position shown in Figure 1 through the medium of a spring 32 housed within the tubular casing 26 and at its lower end 40 bearing against an outstanding flange 33 provided Von the lower endA of a cap 34 tting the end 25 ofthe rod 26, the lower portion'of the spring 32 embracing the cap 34 as shown in Figure 1. By having the end 25 of rod 20, and 45 the cap 34 shaped as shown friction is reduced to a minimum. l

The head 2 may embody the invention in any one of several forms. For example, the head 2| shown in Figure 1 is formed, as suggested in Fig- 50 ure 3 from a blank cut, shaped and dimensioned to provide a center hub 34, the saine being in the form of a disk having pressed from the center thereof a substantially conical bearing or pivot teat 36. Integral with and extending from the hub is a circular series of blades 31 which are in the form of irregularly curved thin strips having integral therewith on the convex edge thereof inwardly extending agitator-projections 38, which in the form of the invention shown in Figure 3 have the forms of flat rings or annuli.

In the forming of the head, after the blank has been cut and shaped to the design of Figure 3 the blades or strips 31 at the ends thereof integral with the disk 35 are longitudinally twisted as indicated at 39 in Figure 1 and directed upwardly in a manner to give a substantially bulbous contour or shape to the head. At their free ends the blades 31 converge and have end sections 4U bent at a suitable angle and disposed in vertical planes.

In assembling the head 2| and shaft 26 the ends of the blades are crowded-about the re duced section 23 of the shaft or rod v2.1i and in abutting relation with the shoulder 2li of the rod.

Tosecure the head 2| on the rod 2D there is provided a ferrule or sleeve 4i to the lower en'd of Whichare secured in any suitable manner the ends 4'0 of the blades 31.

Inwardly from the ends 43 thereof the blades 31 are provided with inwardly directed lugs or projections 42, and disposed within the confines of theblades is a circular-apertured plate 43 to the underside of which the lugs ft2 are secured in any suitable manner with the blades 31 eng-aging-in notches 4 provided on the peripheral edge of the plate 43. The plate i3 will serve to strengthen the structurev at this point while the lugs 42 will serve to force the air downwardly toward the Ygreater diameter of the head 2| to insure the maintenance of air spaces suicient-to thoroughly aerate the food product being whipped during the rotation of the head.

It might be stated that the blankfrom which the head -2l is made after the-parts thereof have been-suitably relatively arranged in completing the formation of the head, and alsoY subsequent to the assembly of the entire element is,v together with the completed assembly tin-dipped-oroth- 'erwise treated, to prevent rust, and tootherwise venhance-the appearance of the beater.

From the description of the Vinvention thus far, it Will'be seen that in operation, downward pressure on the handle or gri-p 21 whenl the teat 36 rrears against the bottom of the-receptacle containing'the material to be whipped, causes the handle to move down on the rod-20 in opposition to the action of thespring 22 with the result that the rod 2) and the head 2l will be caused to rotate in one direction by reason of-they ensagement rof the 'spiral with the edgesvof the opening in the cap 29. As soon as'the operator relieves the pressure on the handle,'the recoil of thefspring 32 exerts a pressure on the handle 21, causing the latter to rise with the result that the rod 20 and head 2l will be caused to rotate in the opposite direction. It will thus` be seen that by reciprocating the handle 21I relative to the rod k20 said rod 20 andA head 2iwil1 be caused to rotate-nrst in one direction and then'inA another, thereby thoroughly agitating thematerial to be whipped.

In theA form ofthe invention shownin-Figures 9, 10, 11, 12,13, 14 and l5 the head of the beater instead of being stamped from one piece comprises a plurality of individual elements including the blade 31a, each of-whch is formed yfrom-a single length of wire having 4an irregular 'curvature and having portions thereof coiledto providefinwardly projecting coils or rings38a corresponding to the rings 38 hereinbefore referred to. The blades 31a are also formed at their upper free end as at 49a, while at their base ends 39a the blades are clamped to a hub which as shown in Figures 12 to 15 inclusive 5 comprises a substantially cylindrical member which in its periphery is provided with a series of notches l which accommodate the ends 39a of the blade. Said ends 39a are also provided with laterally disposed portions 39h that abut the closed end of the cylinder l5 as shown in Figure 12. The ends 39a of the blades are clamped between the closed end of the cylinder 65 and a circular crimped plate i3 which is secured in position by bending the fingers 41 formed by the 15 slots A[i6 over the plate 4S in a manner suggested in Figure 12. The plate 48 has its center portion pressed out to provide a conical teat or bearing portion 49.

The ends 46a are secured to the rod 2G in sub- 20 stantially thesame manner in which the ends 40 of the blades 31 are secured to said rod 2f) and consequently further detailed description of this feature is deemed unnecessary.

Also, completing this form of thetinvention is a circular apertured plate 63a that is provided with a circular series of openings through which the upper end of the wire blades 31 extend. The plate 43a is secured xedly to the blades 31a in any suitable manner as by electric welding or the like. Also, the fingers 41 subsequent to the bending thereof lover the plate i8 will be electrically welded or otherwise secured to the plate 48.

In the form of the inventionshown in Figures 16 and 17 there is suggested the manner of using blades 31D which are identical with the hereinbefore-described blades 31 but which lare separate from the center disk or hub. In this form of the invention the center disk or hub indicatedby the reference numeral 35h as a radial series of grooves 50 pressed out therefrom in a manner clearly shown in Figure 1'7 to accommodate the base ends of the blades 31D. With the base ends ofthe blades 31b'proper1y fitted within the groove 59 a-press or the like is utilized for contracting the grooves Eil-in a manner indicated at 5I to secure the vbaseends of the blades 31h-within said grooves or channels 50, and consequently the blades and hub disks in assembled relation. In this latter form of the invention it will of 50 course be understood that in shaping the-beater head the'blades `311) at their baseportions 'Will be twisted in substantially the-identical manner in-whichthe blades 31 are twisted at 39 relative to the disk 35.

As hereinbefore intimated the projections on the blades may assume various shapes, as for example such projections maybe in' the shape of disks such as indicated *atl 52 in Figure 18'with the disks suitably perforated as suggested therein. 60 Also Vsuch projections may have the form of a single arm such as indicated at 53 or the form of a triangular 'projection such' as indicated at 54 in Figure 18.

In some instances itis preferred for stren'gth- 65 ening purposes to provide a center post such as indicated -at 55 inFigure 1. Where thispost is used the same eXtendslthroughtheaxial center of the beater head and has one end extending 'up between the ends 6i)` ofi thev blades-X31 'within the 70 sleeve orferrulevf23 while at itslower end the post is' providedvwith a reduced'or chin portion 36 that extends 'through van aperture provided therefor in the apex of 'the' teat 36 as also shown in Figure 1. To secure the `endsoftheblades'to 75 the rod of the beater the sleeve is contracted at one end about the rod and at its opposite end about the ends of the blades grouped about the reduced end of the rod.

It might be mentioned that constructing the blade in the manner mentioned by the blades 31 there are no spaces between the parts as occur between the convolutes in the blade structure 31a Where the material being whipped may accumulate and which is not easily removed when cleansing the beater although it will be apparent that with either construction of beater head the beater Will be efficient in operation, thoroughly sanitary and can be simply and economically constructed.

Having thus described my invention, what I claim as new is:

1. In a beater having a shaft and means for rotating the same; said shaft having a free end reduced in diameter providing a shoulder inwardly from the terminal of the shaft, a beater head comprising a hub member having a series of whipping blades connected at one end with the hub and having free ends paralleling the reduced end of the shaft and abutting said shoulder, a. sleeve disposed about said shaft and the last named ends of said blades, said sleeve having an end portion contracted about said shaft and a second end portion contracted about said last named ends of the blades for securing the beater head to the shaft, said hub at the center thereof being provided With a substantially conical pivot teat, and a reinforcing rod having an end in abutting relation with the reduced end of the shaft and a second end tting in said depression, and

each of said blades on the inner edge thereof having integral therewith a series of spaced agitator projections disposed in a plane normal to the plane of the blades, and said blades adjacent the ends thereof secured to the shaft being provided 5 on their inner edges with integral projections, and an annular plate disposed about the reinforcing rod, said plate at the peripheral edge thereof resting on said projections and secured to the projections.

2. A stirrer head for beaters comprising a body cut from a single blank of metal and including a central disk-hub having a plurality of elongated curved stirring blades extending radially therefrom, and a series of relatively spaced substan- 15 n tially circular agitator projections integral with the concave edges of said blades, said blades at the ends thereof integral with the disk-hub being longitudinally twisted to extend in a plane substantially at right angles to the plane of the disk# 20 hub, the free ends of the blades being adapted for attachment to the rotary shaft of a beater.

3. A stirrer head for beaters comprising a plurality of stirring blades, a hub provided in its periphery with a circular series of notches and ngers between the notches, said blades having one end engaging in the notches in the hub, a vcircular crimped plate arranged within the hub and cooperating therewith for securing said ends 30 of the blades to the hub, and said ngers being clinched over said plate for securing the latter within the hub.

PAUL C. WIEGANDT. 

